Comparative study of three methods for computing electric fields

Beasley, Michael; Pickles, J.H.; Gallet, G.; Grégoire, J. P.; Morin, Magnus; Beretta, L.; Fanelli, Michele; Guiseppetti, G.; Monaco, Antonio Di; D’Amico, Gennaro

doi:10.1049/piee.1979.0025

Cited by 54 publications

(15 citation statements)

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“…Malik reviewed the CSM application, and modified it by using the least square method to minimize the errors [8]. It has been shown that for insulators that are rotationally symmetric, CSM has certain advantages over other numerical methods in terms of computational complexity [9]. However, on wet surfaces, the discrete water droplets on the insulator are not symmetric, and hence, have to be modeled in three dimensions.…”

Section: Introductionmentioning

confidence: 99%

Charge simulation based electric field analysis of composite insulators for HVDC lines

Gorur

2014

IEEE Trans. Dielect. Electr. Insul.

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This paper illustrates a charge simulation method based computation of electric potential and field of composite insulators for HVDC lines. The electric field is calculated under both dry and wet conditions and compared to AC line insulators. The results indicate that for the same nominal voltage, the electric field for DC lines is higher than for ac lines, thereby necessitating larger field control devices (corona and grading rings) for DC insulators. A process for optimizing corona and grading ring dimensions is described and applied for 500 kV HVDC lines.

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Section: Introductionmentioning

confidence: 99%

Charge simulation based electric field analysis of composite insulators for HVDC lines

Gorur

2014

IEEE Trans. Dielect. Electr. Insul.

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“…An alternate interpretation was investigated by imagining two parallel cylinders to be appoximated by several overlapping spheres as shown in figure 10. The interaction of each pair of spheres (one from each cylinder) approximately represents the interaction of different sections of the Darallel cylinders.…”

Section: Accuracy Of the Methodsmentioning

confidence: 99%

“…The MCM has always been programmed for three dimensional problems but it is not as popular because it gives only an estimate of the field and is slow if accurate calculations are required at a large number of points. More recently, a number of attempts have been made to solve general three dimensional problems [10,11,12]. In each case there have been difficulties with long set up times, and large memory and computation time requirements.…”

Section: Introductionmentioning

confidence: 99%

Boundary Element Methods for Weakly Three Dimensional Quasi-Electrostatic Problems

Olsen

Einarsson

1987

IEEE Trans. Power Delivery

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Using perturbation theory, a Boundary Element Method is developed for solving a class of three dimensional electrostatics problems. This class includes problems for which an axially symmetric object is weakly coupled to other objects without symmetry so that the total geometry is three dimensional. A problem which falls into this class is that of a surge arrester located near one or more other arresters. The time required for set up and solution using this method is not significantly greater than that required for solving the axially symmetric problem by itself. A simple empirical formula for error is developed by comparing exact solutions with solutions developed using the method described here.

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“…Tortschanoff [27] discussed the field equations for eddy current problems and compared the FEM and FDM by using different solution tech niques to solve the system of equations. Beasley et al [28] tested the Monte Carlo method, FEM, and the charge simulation method for calculating electrostatic fields and potential. Krawczyk and Turkowski [29] stressed the necessity for choosing the technique that would satisfy the needs of the problem in the most efficient manner.…”

Section: Chapter 2 Numerical Modelingmentioning

confidence: 99%

Finite element and boundary element analysis of electromagnetic NDE phenomena

1998

NDT & E International

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Comparative study of three methods for computing electric fields

Cited by 54 publications

References 1 publication

Charge simulation based electric field analysis of composite insulators for HVDC lines

Charge simulation based electric field analysis of composite insulators for HVDC lines

Boundary Element Methods for Weakly Three Dimensional Quasi-Electrostatic Problems

Finite element and boundary element analysis of electromagnetic NDE phenomena

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